2012年10月31日,中国地质科学院国家地质实验测试中心研制的湖底沉积物中磷形态系列标准物质和地下水砷形态系列标准物质通过了全国标准物质管理委员会审查,获批为国家一级标准物质。湖底沉积物中磷形态系列标准物质和地下水砷形态系列标准物质的研制填补了我国相关介质形态标准 On October 31, 2012, a series of standard forms of phosphorus form series and arsenic form of groundwater, developed by the National Geological Experimental Testing Center of the Chinese Academy of Geological Sciences, passed the review by the National Standard Material Management Committee and were approved as national standard materials . Lake sediments in the phosphorus form series of standard materials and groundwater arsenic form of standard series of standard materials to fill China’s relevant media form standards